One of my back mounting studs snapped at the face of the crankcase. I tried using an extracting bit with a drill and after that didn't work tried using a dremel to cut a slot so I could use a flat head to back it out. Neither worked and chewed up the opening of the hole pretty good in the process. Any ideas on how to mount it differently or get the bolt out? Maybe get a new crankcase (and if so where)? Give up on life? I removed the other stud next to the broken one in the pic.